Tire-rim tool



5am. 13. i925. L52250 H. H. DAVIS TIRE RIM TOOL Filed Aug. 3, 1923 2 Sheets-Sheet l afronta?,

.Fam 1925 LSZZE H, infn-@f5 TIRE RM TOOL Filed Aug. 5, 15925 2 Shees-Sheet 2 El HoweHDar; @f www @Het na L;

Patented Jen. i3, w25..

HOW@ H. DAW', @F MCHND, ENDEANA.

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Application med August 3, M253. Seite! No. @$55,450.

To all whom t may concern.'

Be it known that I, Howell. DAVIS, e citizen of the United States, residin in the city of Richmond, in the county of 'ayne, State o lndiena., have invented e new and useful Tireliim Tool, o which the following is e full, clear, andconiprehensive specification, being such es will enable others to construct end use the seme with exactitude,

The object of my present invention, broad ly speaking, is the provision of .a tire rim 'tool which is strong and durable in construction, simple in its several parts, easilylop erated `in practice, comparatively light 1n weight, compact in form, and which con be manufactured end sold et a. comparatively lovllprice.

ore specifically stated my object is to provide e tire rirn tool by which e. tire rim moy loe contracted to remove it from e tire or cesing end by which the rim may eesiiy lie expended to its normal operative position in connection with e. tire, end whereby both operations may be performed vvitliout twisting the rim end Without damage thereto, end requiring only a minimum of time and labor on the port of the operator in the manipule.- tion thereof. f

Other objects sind particular edventeges oi? the invention will be brought' out end mede apparent to the ordinary niecliiinicien in tlie course of the following speciicetion.

The oreierred means for carrying out the princi@ es of my invention in e practical manner is shown in the accompanying two sheets or drawings, in Which- Figure 1 shows :my invention extended in operative condition in connection with e tire-rim, showing it in position to commence contracting the rim or as having completed the operation ot pushing the rim out to its normal o eretive position. Figure 2 is the same as ll ig. i, except that it sliovvs the other side of the device and showing the rim es partly contracted by the device. Figure 3 shows the device in folded position, es it would eppeer when not in use. Figure e is a pien vlevv of the ratchet Wheel, also sliovving an end elevation of the body member. Figure 5 shows one of the arms 1n elevation end show-ing e side elevation of the jews carried thereby, and Figure 6 shows e longitudinal central section of one of the arms, end also on edge vievv of one of the jews.

Similar indices denote like ont tlie several views.

ln order that the construction, -tlie ogere.s tion, and the several edi/enteges the in vention may be more fully YYnnderstood end appreciated l will newv take un' detailed description thereof, in ivliicli l will describe the severel parte es fully es l may.

ln the drawings letter A denotes e tirerini, leaving the usuel marginal edges or ilonges i3 end C, end the end-s B and E. Seid ends being abutted together when the tire is in operative condition to retain e. tire casing extending thereeronnd in conperts throughtect with tlie periphery of the rim, with its edoes located between the edges or ilenges 3P :and C of the rim.

Locking ineens Snot shown) ore provided to retain seid 'ents in regieterno.,g` contact with eeclri other.

Aft/ere. tire lies been used for sometime in connection with itsrim it becomes set or sealed thereto, end for that reason, and else by reason ci the 'expensive tendency ot the rim, it l"oecoines very diidcnlt `to remove the rim from the tire, but oy en-iloyment of my tool-this difficult is overcome, thereby making it very easy oth to remove and re: piece 'the rim.

The invention propercomprises e refne or body member l, liet/ine* o control spece 2 therethrough es shown. tee-id loo-dy member has tivo swelled or rounded portions 3 end i, which ere spaced apart es sliovvn end through which smootlbliore epertnres ere formed, es the aperture 5 shown in Fig. el. Seid apertures ore in direct elinement vvitli each other lout ythey ere spaced eport by the space 2.

Extending out et an ongle rom the Wider portion of the body l ere oppositely disposed tongues 6 sind 7, erich having en aperture therethrough to receive the respective bolts 8 enel 9.

,ln this instence there is one active ond tvvo poive The ective erin inclndes the screvvelieiit 10,-vvliicli is of suoli` diameter es to slide snugly tiirongii time apertures 5 in tl'ie swell portions 3 and fi. ,A channel il extends the full length of tiie threaded portion of the shaft l@ and it is longitudinally thereof, A. key 12 is located. in the channel il and in the aperture 5, and it is secured; 1n the latter by' the pin or screw i3, whereby the shaft. il)

may move longitudinally but can not turne The passive arms are identical with each. other, and they' are shown in 5 and t. Each oi' said arms comprises a clevis la adapted to stride the ton v'ues 6 and 7 where it is pivotedly secured y the bolt 8, A threaded stem lextends from the cievis le being integral therewith., A second threaded stein l@ is spaced from and is in alinement with the stem l5u The stems l5 and i6 are connected by the turnbuckle 17 whereby when the turnbuchle i7 is turned in onedirection said stems will be drawn toward each other, while if turned in the other direction they will. be forced apart.

The ratchet mechanism comprises the ratcl1etwheel.'22, lhaving a hub-Harige 23- integral therewith. wheel 22 plus the length of the hub 23 is such as to 'extend between the inner ends of the portions 3 and 4, which of course brings them in the space 2 as shown in Figs.

l, 2 and 3.

The central aperture through said wheel 22 and hub 23 is threaded to run on theV 'of the wheel 22 will move the shaft l@ endwise.,

A collar 24 surrounds the liub 23, the same being' rotatably mounted in a channel formed around in the periphery of said hub, as is indicated. The ends of said collar are connected by a bolt 25 to ythe inner end ot the lever 26 whereby said lever is pivoted on the bolt 25. By the above it will be seen that the lever 26 has universal movements: turning on the bolt 25; and by the turning of the collar 2li around said-hub.

Numeral 27 denotes a double-tooth pawl, which. is pivoted by the bolt 28 to the lever 26 in such manner that the teeth of the pawl may engage in the notches formed in vthe periphery of the wheel 22.

Ja'w-zeadsf-Foruied integral with. the outer end of'each ot the stems l@ is ahead 29 whose outer face ai is at right-angles to the stem 16. integral with and lemendirug" out from two opposite sides of the head 29 is a pair of ears, 30 and 3l, which are formed with apertures therethrough to receive the respective bolts 32 and 33, Numerals' 3d and 35 denote identical but oppositely dis posed hcolt jaws, whose base ends are located between the members oi the respective pairs of'ears 30 and 3i, and 'they are pivoted on the respective bolts 32 and 38, Tie outer portions oi? said jaws terminate in the respective hooks 3G and 37. Said jaws are normally and resiliently drawn inward toward each other by a pairoi heiical springs 38 and 39. Ait the end of the shaft l0 are The thickness of the ,seater placed gripping jaws and a head corresponding in all respects to those at the end of each stem 16..

Modas operandi-The operation oi my in- I vention is very simple, for instance, when the device is in theposition in which it is shown in Fig. 3 it may be carried in ones.

tire connected thereto upon a doen TheV tool .may then be opened out, disposing the arms at approximately equal distances apart and radiating from the bod member l.

By turning the turnbuck es i?, and the ratchet wheel 22,v the arms may be lengthened to suit the diameter of that particular rim. However after this adjustment is once made it will not be necessary to change it unless one desires to operate upon a diderent size rim than that to which it is adjusted.

N ext the jaws '34 and 35 may be manually opened, then engaging the hooks of the jaws with the anges 'B and C' of the rim A where they will be retained by theirV respective springs.l New one has only 'to grasp the lever 26, turning it to the position in which 1t is shown in Fig. 2, that is so that it will entend out at right-angles to the shaft 10. The pawl 2'? is then turned to the left whereby when the lever 26 is moved to the right the awl will engage and turn the wheel 22 to t 1e right, thereby drawing the shaft l0 inward,.that is away from' the rim As the ws carried by the shaft l0 are near the end i, and as the jaws of the other two arms are also engaged with the rim, it is evident that as the shaft 10 is moved inward. the end portion E of the rim .will rst be drawn inward, as in Fig. 2, until. it is disengaged from the end D, and thereby permitted-to passer lap under the portion D, thereby de creasing the circumference of the rim with relation to the tire, and thereby freeing the tire from the rim.

Then after the tire hasbeen repaired, orA

a new tire substituted therefor, it may be placed in position around the rim, still being held contracted by my tool, after which the pawl may be turned over whereby when the lever 26 is o erated the wheel 22 will he turned to the le t, thereby forcing the shaft i@ outward, with the faces .tof the heads, a ainst the inner periphery of, the rim, w rich manifestly will force the rim. hack to its nom-nal operative position in engagement with the tire, as shown in Fig. 1.

From the above it will be `apparent that the pull upon each. side of the rim will always be equal and the rimv can not be twisted out ofV shape in the operation.

l desire that it he understood that various changes may be made in the several details of the arrangement herein shown without departing from the principles of the invenmy invention, ywhat claim and desire to seeure by Letters Patent of the United States,

l. A tire rim tool comprising a central body member, a screw shaft extending through the body and adapted to be move endwise but not revolubly, a ratchet wheel located in the body member and operative upon said shaft to force it endwise, a universally mounted lever for operating said ratchet wheel, a pawl pivoted to said lever and adapted to be turned to drive the ratchet wheel in either direction, a pair of arms pivoted to the body member, means for adjusting the lengths of said arms, a pair of jaws carried by the outer end of each arm and the outer end of said shaft and adapted to engage both edges of atire rim, and means for resiliently drawing the members of each pair of jaws toward each other into engage ment with the edges of the tire rim.

2. A tire tool comprising a central body member, a screw shaft extending throu h the body member and adapted to be move end-y pivoted to the body member, turnbuekles forV adjusting the lengths of said arms, a pair of jaws carried by the outer end of each of said arms, a third pair of jaws carried by the outer end of said shaft, springs for manually drawing the members o each air of jaws toward each other, and a hea lo,- cated between the members of. each pair of jaws to engage the inner peri hery of a tire rim whereby the rim may be breed outward by means of said head as well as drawn inward by meansof said jaws.

ln testimony whereof l have hereunto subscribed my name.

sown n. Davis. 

